package com.ydl.shopping.utils;

import com.ydl.shopping.core.entity.LoginUser;
import com.ydl.shopping.domain.TbUser;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

/**
 * 安全服务工具类
 *
 * @author 林武泰
 */
public class SecurityUtil {
    /** 获取用户Id */
    public static Long getUserId() {
        try
        {
            return getUser().getId();
        }
        catch (Exception e)
        {
            throw new RuntimeException("获取用户ID异常");
        }
    }

    /** 获取用户名 */
    public static String getUserName() {
        try
        {
            return getUser().getUsername();
        }
        catch (Exception e)
        {
            throw new RuntimeException("获取用户名异常");
        }
    }

    /** 获取用户信息 */
    public static TbUser getUser() {
        try
        {
            return getLoginUser().getTbUser();
        }
        catch (Exception e)
        {
            throw new RuntimeException("获取用户信息异常");
        }
    }

    /** 获取用户token */
    public static String getToken() {
        try
        {
            return getLoginUser().getToken();
        }
        catch (Exception e)
        {
            throw new RuntimeException("获取用户Token异常");
        }
    }

    /** 获取登录用户信息 */
    public static LoginUser getLoginUser()
    {
        try
        {
            return (LoginUser) getAuthentication().getPrincipal();
        }
        catch (Exception e)
        {
            throw new RuntimeException("获取登录用户信息异常");
        }
    }

    /** 获取Authentication */
    public static Authentication getAuthentication()
    {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    /**
     * 生成BCryptPasswordEncoder密码
     *
     * @param password 密码
     * @return 加密字符串
     */
    public static String encryptPassword(String password)
    {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.encode(password);
    }

    /**
     * 判断密码是否相同
     *
     * @param rawPassword 明文密码
     * @param encodedPassword 加密后字符
     * @return 结果
     */
    public static boolean matchesPassword(String rawPassword, String encodedPassword)
    {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }
}
